Subject:
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Re: rtlToronto8 and light sensors
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Tue, 29 May 2001 20:44:35 GMT
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Viewed:
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474 times
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Rob Stehlik wrote:
> > Then, how many people are using single RCX vs multi RCX? Single unit vs
> > multiple units? Single light sensor vs multiple light sensors?
>
>
> I would really like to go with a single RCX, but that all depends On what
> navigation technique I use, and the sensors required. I defenitely need to
> use a rotation sensor for steering, and one or two light sensors for
> sorting... You see, I figure if you have a light sensor facing down just
> high enough to allow blocks to pass underneath, you can detect the dividing
> line, and differentiate the block colours easily enough. My issue is that my
> sorting mechanism is a fair distance away from where the light sensor would
> be, so I don't want to rely on just timing to sort the block once they get
> there. So probably 2 or 3 light sensors (I will have to borrow the third
> from a friend).
Hrm, maybe I should think about a movement algorithm more complex than
"drive around randomly" :)
> > Anyone using a single light sensor configuration for rtlToronto8? Victor
> > and I spent Sunday working on a prototype robot and had a sensor angled at
> > the floor that could also see a block. We got reasonably separate readings
> > for blocks (both white and black) and floor, but the issue is that once
> > you've got a block, you can't read floor anymore to tell if you're in enemy
> > territory or back home to discard or keep.
>
>
> I don't think this is a problem at all. The block doesn't stay under the
> light sensor for very long (or does it?). In my case it is just a matter of
> programming to differentiate between two thin alternating lines and one
> thick section of colour for a block. Not that I have done this yet...
Sounds like some people are picking up blocks, and some people are just pushing
around blocks instead.
VJR
http://www.chuma.org
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Message has 1 Reply:
 | | Re: rtlToronto8 and light sensors
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| (...) Something based around at what point of the game you're in (ie, defensive vs offensive) and game state where blocks might be. (...) I'm gonna run a few tests with block detection at that level. Right after I stop splitting 1x2s with too much (...) (23 years ago, 29-May-01, to lugnet.org.ca.rtltoronto)
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Message is in Reply To:
| | Re: rtlToronto8 and light sensors
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| (...) I should be able to bring a robot, but mine isn't coming together as nicely as I would like. I have a really slick three wheel driving base built, but the gathering/sorting mechanism has been tough to build. My original idea resulted in about (...) (23 years ago, 29-May-01, to lugnet.org.ca.rtltoronto)
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